bpo-27860: use cached_property (GH-12832)
* cached_property is more efficient than hand crafted cache. * In IPv[46]Network, `self.network.prefixlen` is same to `self._prefixlen`.
I
Inada Naoki committed
2430d532e240dea55f0082d1e9bf2e0f3d7505be
Parent: 3c5a858
Committed by GitHub <noreply@github.com>
on 4/15/2019, 7:01:00 AM